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comparison m4/acinclude.m4 @ 28528:d5311ca8f945

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maint: merge stable to default.
author Markus Mützel <markus.muetzel@gmx.de>
date Thu, 02 Jul 2020 18:16:10 +0200
parents 0c6dcf803529 9e7b2625e574
children 20ee8aa92897
comparison
equal deleted inserted replaced
28526:1151ed869686 28528:d5311ca8f945
182 fi 182 fi
183 else 183 else
184 octave_cv_broken_stl_algo_h=no 184 octave_cv_broken_stl_algo_h=no
185 warn_stl_algo_h="UNEXPECTED: nth_element test failed. Refusing to fix except for g++ 4.8.2." 185 warn_stl_algo_h="UNEXPECTED: nth_element test failed. Refusing to fix except for g++ 4.8.2."
186 OCTAVE_CONFIGURE_WARNING([warn_stl_algo_h]) 186 OCTAVE_CONFIGURE_WARNING([warn_stl_algo_h])
187 fi
188 ])
189 dnl
190 dnl Check if pthread stack size accounts for thread-local storage.
191 dnl
192 dnl This program should succeed if the pthread library allocates memory
193 dnl for thread-local (__thread) variables independently of the
194 dnl requested thread stack size.
195 dnl
196 dnl It will fail if (as in the current version of glibc) the storage
197 dnl for thread-local variables is subtracted from the memory allocated
198 dnl for the thread stack. (This can cause problems for Java and for
199 dnl other libraries.)
200 dnl
201 dnl This bug is tracked in glibc at:
202 dnl https://sourceware.org/bugzilla/show_bug.cgi?id=11787
203 dnl
204 AC_DEFUN([OCTAVE_CHECK_BROKEN_PTHREAD_STACKSIZE], [
205 AC_CACHE_CHECK([whether pthread stack size does not account for thread-local storage],
206 [octave_cv_broken_pthread_stacksize],
207 [AC_LANG_PUSH(C)
208 AC_RUN_IFELSE([AC_LANG_PROGRAM([[
209 #include <stdio.h>
210 #include <string.h>
211 #include <pthread.h>
212
213 static char __thread data[100 * 1024];
214
215 static void * threadfunc(void *arg)
216 {
217 return data;
218 }
219 ]], [[
220 pthread_attr_t attr;
221 pthread_t thread;
222 int errnum;
223
224 pthread_attr_init (&attr);
225 errnum = pthread_attr_setstacksize (&attr, 64 * 1024);
226 if (errnum != 0)
227 {
228 fprintf (stderr, "pthread_attr_setstacksize: %s\n", strerror(errnum));
229 return 1;
230 }
231 errnum = pthread_create (&thread, &attr, &threadfunc, NULL);
232 if (errnum != 0)
233 {
234 fprintf (stderr, "pthread_create: %s\n", strerror(errnum));
235 return 1;
236 }
237 errnum = pthread_join (thread, NULL);
238 if (errnum != 0)
239 {
240 fprintf (stderr, "pthread_join: %s\n", strerror(errnum));
241 return 1;
242 }
243
244 pthread_attr_destroy (&attr);
245 return 0;
246 ]])],
247 octave_cv_broken_pthread_stacksize=no,
248 octave_cv_broken_pthread_stacksize=yes,
249 octave_cv_broken_pthread_stacksize=no)
250 AC_LANG_POP(C)
251 ])
252 if test $octave_cv_broken_pthread_stacksize = yes; then
253 AC_DEFINE(HAVE_BROKEN_PTHREAD_STACKSIZE, 1,
254 [Define to 1 if pthread stack size does not account for thread-local storage.])
187 fi 255 fi
188 ]) 256 ])
189 dnl 257 dnl
190 dnl Check whether CXSparse is version 2.2 or later 258 dnl Check whether CXSparse is version 2.2 or later
191 dnl FIXME: This test uses a version number. It potentially could 259 dnl FIXME: This test uses a version number. It potentially could